private async Task<Tuple<string, string>> CreateAccessTokenAsync(ValidatedTokenRequest request)
        {
            TokenCreationRequest tokenRequest;
            bool createRefreshToken;

            if (request.AuthorizationCode != null)
            {
                createRefreshToken = request.AuthorizationCode.RequestedScopes.Select(s => s.Name).Contains(Constants.StandardScopes.OfflineAccess);
                
                tokenRequest = new TokenCreationRequest
                {
                    Subject = request.AuthorizationCode.Subject,
                    Client = request.AuthorizationCode.Client,
                    Scopes = request.AuthorizationCode.RequestedScopes,
                    ValidatedRequest = request
                };
            }
            else
            {
                createRefreshToken = request.ValidatedScopes.ContainsOfflineAccessScope;

                tokenRequest = new TokenCreationRequest
                {
                    Subject = request.Subject,
                    Client = request.Client,
                    Scopes = request.ValidatedScopes.GrantedScopes,
                    ValidatedRequest = request
                };
            }

            Token accessToken = await _tokenService.CreateAccessTokenAsync(tokenRequest);

            string refreshToken = "";
            if (createRefreshToken)
            {
                refreshToken = await _refreshTokenService.CreateRefreshTokenAsync(tokenRequest.Subject, accessToken, request.Client);
            }

            var securityToken = await _tokenService.CreateSecurityTokenAsync(accessToken);
            return Tuple.Create(securityToken, refreshToken);
        }
        private async Task<TokenResponse> ProcessAuthorizationCodeRequestAsync(ValidatedTokenRequest request)
        {
            Logger.Info("Processing authorization code request");

            //////////////////////////
            // access token
            /////////////////////////
            var accessToken = await CreateAccessTokenAsync(request);
            var response = new TokenResponse
            {
                AccessToken = accessToken.Item1,
                AccessTokenLifetime = request.Client.AccessTokenLifetime
            };

            //////////////////////////
            // refresh token
            /////////////////////////
            if (accessToken.Item2.IsPresent())
            {
                response.RefreshToken = accessToken.Item2;
            }

            //////////////////////////
            // id token
            /////////////////////////
            if (request.AuthorizationCode.IsOpenId)
            {
                var tokenRequest = new TokenCreationRequest
                {
                    Subject = request.AuthorizationCode.Subject,
                    Client = request.AuthorizationCode.Client,
                    Scopes = request.AuthorizationCode.RequestedScopes,
                    Nonce = request.AuthorizationCode.Nonce,

                    ValidatedRequest = request
                };

                var idToken = await _tokenService.CreateIdentityTokenAsync(tokenRequest);
                var jwt = await _tokenService.CreateSecurityTokenAsync(idToken);
                response.IdentityToken = jwt;
            }

            return response;
        }
        private async Task<TokenResponse> ProcessRefreshTokenRequestAsync(ValidatedTokenRequest request)
        {
            Logger.Info("Processing refresh token request");

            var oldAccessToken = request.RefreshToken.AccessToken;
            string accessTokenString;
            
            if (request.Client.UpdateAccessTokenClaimsOnRefresh)
            {
                var subject = request.RefreshToken.GetOriginalSubject();

                var creationRequest = new TokenCreationRequest
                {
                    Client = request.Client,
                    Subject = subject,
                    ValidatedRequest = request,
                    Scopes = await _scopes.FindScopesAsync(oldAccessToken.Scopes)
                };

                var newAccessToken = await _tokenService.CreateAccessTokenAsync(creationRequest);
                accessTokenString = await _tokenService.CreateSecurityTokenAsync(newAccessToken);
            }
            else
            {
                oldAccessToken.CreationTime = DateTimeOffsetHelper.UtcNow;
                oldAccessToken.Lifetime = request.Client.AccessTokenLifetime;

                accessTokenString = await _tokenService.CreateSecurityTokenAsync(oldAccessToken);
            }

            var handle = await _refreshTokenService.UpdateRefreshTokenAsync(request.RefreshTokenHandle, request.RefreshToken, request.Client);

            return new TokenResponse
                {
                    AccessToken = accessTokenString,
                    AccessTokenLifetime = request.Client.AccessTokenLifetime,
                    RefreshToken = handle
                };
        }
        public async Task<AuthorizeResponse> CreateImplicitFlowResponseAsync(ValidatedAuthorizeRequest request, string authorizationCode = null)
        {
            Logger.Info("Creating Implicit Flow response.");

            string accessTokenValue = null;
            int accessTokenLifetime = 0;

            var responseTypes = request.ResponseType.FromSpaceSeparatedString();

            if (responseTypes.Contains(Constants.ResponseTypes.Token))
            {
                var tokenRequest = new TokenCreationRequest
                {
                    Subject = request.Subject,
                    Client = request.Client,
                    Scopes = request.ValidatedScopes.GrantedScopes,

                    ValidatedRequest = request
                };

                var accessToken = await _tokenService.CreateAccessTokenAsync(tokenRequest);
                accessTokenLifetime = accessToken.Lifetime;

                accessTokenValue = await _tokenService.CreateSecurityTokenAsync(accessToken);
            }

            string jwt = null;
            if (responseTypes.Contains(Constants.ResponseTypes.IdToken))
            {
                var tokenRequest = new TokenCreationRequest
                {
                    ValidatedRequest = request,
                    Subject = request.Subject,
                    Client = request.Client,
                    Scopes = request.ValidatedScopes.GrantedScopes,

                    Nonce = request.Raw.Get(Constants.AuthorizeRequest.Nonce),
                    IncludeAllIdentityClaims = !request.AccessTokenRequested,
                    AccessTokenToHash = accessTokenValue,
                    AuthorizationCodeToHash = authorizationCode
                };

                var idToken = await _tokenService.CreateIdentityTokenAsync(tokenRequest);
                jwt = await _tokenService.CreateSecurityTokenAsync(idToken);
            }

            var response = new AuthorizeResponse
            {
                Request = request,
                RedirectUri = request.RedirectUri,
                AccessToken = accessTokenValue,
                AccessTokenLifetime = accessTokenLifetime,
                IdentityToken = jwt,
                State = request.State,
                Scope = request.ValidatedScopes.GrantedScopes.ToSpaceSeparatedString(),
            };

            if (request.IsOpenIdRequest)
            {
                response.SessionState = GenerateSessionStateValue(request);
            }

            return response;
        }
        private async Task<TokenResponse> ProcessRefreshTokenRequestAsync(ValidatedTokenRequest request)
        {
            Logger.Info("Processing refresh token request");

            var oldAccessToken = request.RefreshToken.AccessToken;
            string accessTokenString;
            
            // if pop request, claims must be updated because we need a fresh proof token
            if (request.Client.UpdateAccessTokenClaimsOnRefresh || request.RequestedTokenType == RequestedTokenTypes.PoP)
            {
                var subject = request.RefreshToken.GetOriginalSubject();

                var creationRequest = new TokenCreationRequest
                {
                    Client = request.Client,
                    Subject = subject,
                    ValidatedRequest = request,
                    Scopes = await _scopes.FindScopesAsync(oldAccessToken.Scopes),
                };

                // if pop request, embed proof token
                if (request.RequestedTokenType == RequestedTokenTypes.PoP)
                {
                    creationRequest.ProofKey = GetProofKey(request);
                }

                var newAccessToken = await _tokenService.CreateAccessTokenAsync(creationRequest);
                accessTokenString = await _tokenService.CreateSecurityTokenAsync(newAccessToken);
            }
            else
            {
                var copy = new Token(oldAccessToken);
                copy.CreationTime = DateTimeOffsetHelper.UtcNow;
                copy.Lifetime = request.Client.AccessTokenLifetime;

                accessTokenString = await _tokenService.CreateSecurityTokenAsync(copy);
            }

            var handle = await _refreshTokenService.UpdateRefreshTokenAsync(request.RefreshTokenHandle, request.RefreshToken, request.Client);

            var response = new TokenResponse
            {
                AccessToken = accessTokenString,
                AccessTokenLifetime = request.Client.AccessTokenLifetime,
                RefreshToken = handle
            };

            if (request.RequestedTokenType == RequestedTokenTypes.PoP)
            {
                response.TokenType = Constants.ResponseTokenTypes.PoP;
                response.Algorithm = request.ProofKeyAlgorithm;
            }

            return response;
        }
Ejemplo n.º 6
0
        /// <summary>
        /// Creates an access token.
        /// </summary>
        /// <param name="request">The token creation request.</param>
        /// <returns>
        /// An access token
        /// </returns>
        public virtual async Task<Token> CreateAccessTokenAsync(TokenCreationRequest request)
        {
            Logger.Debug("Creating access token");
            request.Validate();

            var claims = new List<Claim>();
            claims.AddRange(await _claimsProvider.GetAccessTokenClaimsAsync(
                request.Subject,
                request.Client,
                request.Scopes,
                request.ValidatedRequest));

            if (request.Client.IncludeJwtId)
            {
                claims.Add(new Claim(Constants.ClaimTypes.JwtId, CryptoRandom.CreateUniqueId()));
            }

            var token = new Token(Constants.TokenTypes.AccessToken)
            {
                Audience = string.Format(Constants.AccessTokenAudience, IssuerUri.EnsureTrailingSlash()),
                Issuer = IssuerUri,
                Lifetime = request.Client.AccessTokenLifetime,
                Claims = claims.Distinct(new ClaimComparer()).ToList(),
                Client = request.Client
            };

            return token;
        }
Ejemplo n.º 7
0
        /// <summary>
        /// Creates an identity token.
        /// </summary>
        /// <param name="request">The token creation request.</param>
        /// <returns>
        /// An identity token
        /// </returns>
        public virtual async Task<Token> CreateIdentityTokenAsync(TokenCreationRequest request)
        {
            Logger.Debug("Creating identity token");
            request.Validate();

            // host provided claims
            var claims = new List<Claim>();

            // if nonce was sent, must be mirrored in id token
            if (request.Nonce.IsPresent())
            {
                claims.Add(new Claim(Constants.ClaimTypes.Nonce, request.Nonce));
            }

            // add iat claim
            claims.Add(new Claim(Constants.ClaimTypes.IssuedAt, DateTimeOffsetHelper.UtcNow.ToEpochTime().ToString(), ClaimValueTypes.Integer));

            // add at_hash claim
            if (request.AccessTokenToHash.IsPresent())
            {
                claims.Add(new Claim(Constants.ClaimTypes.AccessTokenHash, HashAdditionalData(request.AccessTokenToHash)));
            }

            // add c_hash claim
            if (request.AuthorizationCodeToHash.IsPresent())
            {
                claims.Add(new Claim(Constants.ClaimTypes.AuthorizationCodeHash, HashAdditionalData(request.AuthorizationCodeToHash)));
            }

            // add sid if present
            if (request.ValidatedRequest.SessionId.IsPresent())
            {
                claims.Add(new Claim(Constants.ClaimTypes.SessionId, request.ValidatedRequest.SessionId));
            }

            claims.AddRange(await _claimsProvider.GetIdentityTokenClaimsAsync(
                request.Subject,
                request.Client,
                request.Scopes,
                request.IncludeAllIdentityClaims,
                request.ValidatedRequest));

            var token = new Token(Constants.TokenTypes.IdentityToken)
            {
                Audience = request.Client.ClientId,
                Issuer = IssuerUri,
                Lifetime = request.Client.IdentityTokenLifetime,
                Claims = claims.Distinct(new ClaimComparer()).ToList(),
                Client = request.Client
            };

            return token;
        }